Base | Representation |
---|---|
bin | 11101001011100110… |
… | …000001100011010101 |
3 | 2222212122121211220100 |
4 | 131023212001203111 |
5 | 1003132223430401 |
6 | 22221051324313 |
7 | 2156314234662 |
oct | 351346014325 |
9 | 88778554810 |
10 | 31333030101 |
11 | 123197512aa |
12 | 60a5450699 |
13 | 2c545c62c9 |
14 | 17334c6a69 |
15 | c35b90b86 |
hex | 74b9818d5 |
31333030101 has 12 divisors (see below), whose sum is σ = 45263360428. Its totient is φ = 20886591744.
The previous prime is 31333030051. The next prime is 31333030109. The reversal of 31333030101 is 10103033313.
31333030101 is a `hidden beast` number, since 31 + 3 + 330 + 301 + 0 + 1 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 22462215876 + 8870814225 = 149874^2 + 94185^2 .
It is not a de Polignac number, because 31333030101 - 26 = 31333030037 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31333030109) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76990 + ... + 261903.
Almost surely, 231333030101 is an apocalyptic number.
It is an amenable number.
31333030101 is a deficient number, since it is larger than the sum of its proper divisors (13930330327).
31333030101 is a wasteful number, since it uses less digits than its factorization.
31333030101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 349172 (or 349169 counting only the distinct ones).
The product of its (nonzero) digits is 243, while the sum is 18.
Adding to 31333030101 its reverse (10103033313), we get a palindrome (41436063414).
The spelling of 31333030101 in words is "thirty-one billion, three hundred thirty-three million, thirty thousand, one hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •